Axially sliding vane rotary pump



July 12, 1949. 5- A CNES 2,475,844

AXIALLY SLIDING VANE ROTARY PUMP Filed May 9, 1945 4 Sheets-Sheet 1 Inventor July l2, 1949.

v G. A. JONES AXIALLY SLIDING VANE ROTARY PUMP Filed May 9, 1945 4 Sheets-Sheet 2 I n veu tor July 12, 1949 G. A. JONES 2,475,844

AXIALLY SLIDING VANE ROTARY PUMP Filed May 9, 1945 4 sheets-sheet 5 l Inventor I GayA/n/@LDNES y @d/W @M3615 July 12, 1949. G. A. JONES 2,475,844

AXIALLY SLIDING VANE ROTARY PUMP Filed May '9. 1945 4 Sheets-Sheet 4 I l1 uelztor Q wh am WW1/wey Hmm drawn and discharged through means Patented July 12, 1949 AXIALLY SLIDING VANE ROTARY PUMP Guy Arnold Jones, Long Beach, Calif., assigner to Eaton Pump Manufacturing Company, Inc., a corporation of California Application May 9, 1945, Serial No. 592,866 l Claim. (Cl. 10S-139) 'I'his invention relates to pumps and has for its object to provide a pump for any liquid and which may be used for large or small quantity pumping at high or low speed and at a minimum costof operation.

A principal object of the invention is to provide a double action rotary pump embracing oscillating ns actuated by means of turbinated harmonious helix cams.

Another object of the invention is to provide in a pump means whereby liquid may be moved by rotor and by suction.

Y A further object ofthe invention is to provide a liquid sealed pump casing.

Another object of the invention is to provide in a pump a rotor and having cam faced side walls having apertures through which liquid is of oscillating vanes.

A still further object of my invention is to provide a self priming rotary pump.

Other features and advantages will become more readily apparent from the following description and the accompanying illustrative drawings in which:

Figure 1 is a longitudinal sectional view of my pump,

Figure 2 is a sectional view taken on line 2 2 thereof,

Figure 3 is an enlarged detail elevational view of a pump casing cylinder,

Figure 4 is a side elevational view thereof,

Figure 5 is a detail side elevational View of a turbinated harmonious helix,

Figure 6 is a face elevation thereof,

, Figure 7 is a sectional view taken on line 1 1 of Figure 1,v

Figure 8 is an elevational view of a rotor,

Figure 9v is another elevational view thereof, and

Figure 10 is a diagrammatic assembly view of the pump parts. M

In the following specification of this invention I use like reference characters to designate like parts as well as in the various views in the accompanying drawings and I5, indicates my pump and its combined elements.

The principal members of my invention are a pump, which includes a casing I6, a cylinder I1. a pair of end plates I8 and I9,` and a rotor 20. The rotor comprises an elongated hub 2l, a pair of spaced apart disk walls 22 and 23, and a series of two (or a multiple thereof) or (as shown) four vanes 25, of the same length as the said hub and which are slidably seated in slots 26, formed in the hub and walls 22 and 23. I'his rotor is mounted within the cylinder I1, and said vanes are of a depth to not quite engage the inner wall 21, of said cylinder I1, in order that they may be oscillated freely by their movement against the oppositely arranged inner cam faces 28 and 29, of the plates I8 and I9, which seat within the ends 30 and 3|, of the cylinder I1, and against the projecting ends 32 and 33, of the hub 2l, which is keyed to a driver shaft 34. Around the outer surface 35, of the cylinder I1, are provided (preferably integral) helical extensions 36, and 31, which are oppositely inclined and the terminals 38 and 39, of each of which come short of encircling the cylinder and which have a very small working clearance from the wall of the opposing cylinder I6, whereby a spiralvpassageway 40, is formed therebetween, which will be again referred to later on.

Again referring lto the members I8 and I9, it may be stated that the cam faces 28 and 29, thereof form a very important feature of the invention; however, as they are identically formed it will be necessary to describe only one in detail. Take member I 9, for instance, it is provided with an annular rim, which is secured by bolts 4I, to the cylinder edges 42 and 4,3, and its cam face 29, is of sufficiently lesser diameter to ilt tightly into said cylinder. The thick end 44, of this cam, including its rims 45 and 46, and also its center or hub abutting'portion 41, and the ribs 48 and 49, which separate the segmentally formed ports 50 and 5I, and 52 and 53, respectively,A gradually and uniformly decreases in thickness down to the thinnest part 54, of the cam. These cams are placed in diametrically opposite positions in the cylinder I1 and are engaged bythe ends and 56, of each of the vanes 25, whereby as the rotor revolves all of said vanes will be harmoniously oscillated inconformity with the opposingly arranged position of saidcams. It .is to be noted (see Figure 6) that the walls 51 and 58, surrounding the ports 50 and 53, are dished out or inclined, the purpose of which is to permit a freer passage of liquid therethrough.

Mounted over the member I1, is a drum I6. provided with outwardly projecting annular ilanges and 6 I. The inner wall 62, of the drum v seats upon the spiral members 36 and 31, and

forms the top wall of the channel or passages 40 and 40a. Bolted to flange 60, is a similar flange 63, of a bell casing 64, in the center of which is provided a bearing 65. The chamber 66, is provided with an outlet port 66; Bolted to ange 6I, is a similarly formed bell casing 89, having a bearing 10, aligning with hub 2I, and bearing 65, which bearings support the said shaft 34. The casing 69, forms the chamber 1I, which opens into the ports 50 to 53, of plate I9. The chamber 66, opens into ports 13 to 16, of plate I8.

The plates I8 and I9, are seated tightly between the inner ends 11 and 18, of the bearings 65 and 10. These bearings are provided with lubricating passages 8i and 82. A packing gland 83, is provided at the inlet 8l, of the shaft 34. It is obvious that the function of ports 68 and 86 may be reversed upon reversal of the pump. The channels 40 and 40a also connect the chambers 66 and 1I, through the ports 81 and 88, liquid passing through this channel is actuated through suction caused in the body of liquid in the inlet side of the bell casing through the action of the pump. As the pump I5, is kept immersed iniliquid with which the bell casing tank, which I designate as an entirety.l by character 89, is kept full there will be no further priming necessary after the rst starting of the pump, said casing 8 9, being airtight and if necessary check or cut 4oil/valves may be provided in the outlet pipes in order to avoid syphoning of the liquid from said csliie.

The operation of the above described pump is very simple. As the shaft and rotor 20, turns the vanes 25, carry the liquid (with which this pump casing is filled) to outlet ports 52 and 53, through which the liquid is forced by the vanes and as water is taken from the inlet side of the pump a fresh supply is sucked in through ports 50 and I. The drawing of liquid into inlet port 86 (the tank being already full) drives it out through outlet port 68.

Attention is called tothe fact that as the large part of the cam M is at the lower end of plate I9, liquid being pushed by the vanes 25, will be forced toward the outlet ports in plate I8, and as the large end of cam I4', in plate I8, is above said ports the space above the ports is reduced thereby forcing the largeyolume of this liquid through the ports.

The course of fluid through the pump is as follows: Pump turning counterclockwise uid enters port 86, in the lower part 61, of chamber 66, and a part of the uid' is drawnthrough ports and 16, into the pumping chamber 90, through the action of the vanes 25, and is pushed by them through ports 13 and 1I, of plate I8, into the upper part of chamber 66, and out through discharge port 88. The balance of said iluid is sucked into port 88, of passage 40, by the same action of the vanes and passes out through port 81, into chamber 1I, and then passes through ports 50 and 5I, of plate I9, into the pumping chamber and thence through ports 52 and 53, entering the lower part 12, of chamber 1I, and then through the other spiral passageway 40a into chamber 66, and out through port 68.

It is thought that persons skilled in the art to which the invention relates will be able to obtain a clear understanding of the invention after considering the description in connection with the drawings. Therefore, a more lengthy description is regarded as unnecessary,

Minor changes in shape, size and rearrangement of details and parts such as come within the purview of the invention claimed may be resorted to, in actual practice, if desired.

Having now described my invention that which I claim as new and desire to procure by Letters Patent is:

A rotary pump including a rotor having spaced disc walls and an intervening annular recess, a cylinder within which said rotor is mounted, double apertured cam-faced plates closing the ends of said cylinder, a plurality of vanes frictionally engaging said cylinder and radially and slidably mounted in said rotor and adapted to be reciprocated axially of said rotor by the cams on said cam-faced plates, a second cylinder on the outside of said rstfmentioned cylinder, two bellshaped casings enclosing the ends of both cylinders and said rotor, each casing being divided into two chambers, oppositely inclined helical partitions each partially encircling and dividing said second cylinder into channels communicating diametrically opposed chambers in said casings on opposite sides of said cylinders, inlet and outlet ports each communicating with one of said chambers in one of said bell-shaped casings, a drive shaft rotatably mounted in said casings and secured to said rotor the said rotor and cam plates and vanes being completely immersed in iiuid drawn into the pump through said inlet port, whereby rotation of said drive shaft rotates said axially reciprocatively mounted vanes impelling saiduid in part through a channel generated on one side of one of said disc walls on the rotor and through one of said double apertured plates to the outlet port, and in part through a xed helical channel bounded by one of said oppositely inclined helical partitions to the opposite side of one of said disc walls and thence through the other double apertured plate, to return through another fixed channel bounded by the other one of said helical partitions to the said outlet port.

GUY ARNOLD JONES.

REFERENCES CITED The following referenlces are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 22,955 Huse Feb. l5, 1859 1,683,962 Crown Sept. 11, 1928 2,020,611 Knapp Nov. 12, 1935 2,154,457 Knapp Apr. 18, 1939 2,202,911 Johnson June 4, 1940 

